Original Title: Evaporator Classification Design Selection Information All You Want Is Here 1 Type of evaporator With the continuous development of industrial evaporation technology, the structure and type of evaporation equipment are constantly improved and innovated, with a wide range of different structures. At present, there are more than 60 kinds of evaporation equipment in industry, of which more than 10 types are most commonly used. This section only introduces a few commonly used types. The common evaporator is mainly composed of a heating chamber and a separation chamber. There are many types of heating chambers. At first, jacketed or coiled heating devices are used, followed by horizontal and vertical short-tube heating chambers. Then the vertical long tube liquid film evaporator and the scraper film evaporator were invented. According to the flow of solution in the evaporator, the indirect heating evaporator commonly used in industry can be roughly divided into two types: circulation type and one-way type. 1. Circulation type evaporator The characteristic of this kind of evaporator is that the solution circulates in the evaporator. According to the principle of liquid circulation, it can be divided into two types: natural circulation and forced circulation. The former is the natural circulation caused by the density difference of the solution due to the different heating degree of the solution at different positions of the heating chamber, while the latter is the forced circulation of the solution by external power. At present, the commonly used circulating evaporators are as follows: (1) Central circulation tubular evaporator Expand the full text The structure of the central circulation tube evaporator is shown in the picture. Its heating chamber is composed of a vertical heating tube bundle (boiling tube bundle). In the center of the tube bundle, there is a tube with a larger diameter, called the central circulation tube, whose cross-sectional area is generally 40 ~ 100% of the total cross-sectional ，W 2 ，… , wiped film evaporator ,nutsche filter dryer, W n — evaporation capacity of each effect, kg/H; F — Flow of raw material solution, kg/H; x 0 , x 1 ,… ,good heat transfer effect and so on. In addition, it is also necessary to have good adaptability to the process characteristics of the material to be evaporated,rotary vacuum evaporator, including the viscosity, high-boiling inorganic or organic substances; Selection Criteria for Common Evaporation Equipment Return to Sohu to see more Responsible Editor:. toptiontech.com
Evaporator Classification
